<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        div{
            width: 100vw;
            height: 100vh;
            background-color: purple;
            display: flex;
            justify-content: center;
            align-items: center;
            animation: ruchang  2s linear both;
        }
        a{
            text-decoration: none;
            font-size: 40px;
            color: sienna;
            animation: huanman 3s 2s linear both;
            
        }
        @keyframes ruchang{
            0%{
                transform: rotateZ(0deg);
            }
            25%{
                transform: rotateZ(70deg) scale(1.6);
            }
            50%{
                transform: rotateZ(360deg) rotateX(360deg);
            }
            
            75%{
                transform: rotateZ(360deg) scale(0.3);
            }
            100%{
                transform: rotateZ(0deg);
            }
        }
        @keyframes huanman{
            from{
                opacity: 0;
            }
            to{
                opacity: 1;
            }
        }
    </style>
</head>
<body>
    <div>
        <span><a href="./作业.html">hi man</a></span>
    </div>
</body>
</html>